/* The following code example is taken from the book
 * "The C++ Standard Library - A Tutorial and Reference, 2nd Edition"
 * by Nicolai M. Josuttis, Addison-Wesley, 2012
 *
 * (C) Copyright Nicolai M. Josuttis 2012.
 * Permission to copy, use, modify, sell and distribute this software
 * is granted provided this copyright notice appears in all copies.
 * This software is provided "as is" without express or implied
 * warranty, and with no claim as to its suitability for any purpose.
 */
#include "algostuff.hpp"
using namespace std;

// checks whether an element is even or odd
bool checkEven(int elem, bool even)
{
    if (even) {
        return elem % 2 == 0;
    } else {
        return elem % 2 == 1;
    }
}

int main()
{
    vector<int> coll;
    INSERT_ELEMENTS(coll, 1, 9);
    PRINT_ELEMENTS(coll, "coll: ");
    // arguments for checkEven()
    // - check for: "even odd even"
    bool checkEvenArgs[3] = { true, false, true };
    // search first subrange in coll
    vector<int>::iterator pos;
    pos = search(coll.begin(), coll.end(),        // range
                 checkEvenArgs, checkEvenArgs + 3, // subrange values
                 checkEven);                     // subrange criterion

    // loop while subrange found
    while (pos != coll.end()) {
        // print position of first element
        cout << "subrange found starting with element "
             << distance(coll.begin(), pos) + 1
             << endl;
        // search next subrange in coll
        pos = search(++pos, coll.end(),               // range
                     checkEvenArgs, checkEvenArgs + 3, // subr. values
                     checkEven);                     // subr. criterion
    }
}
